31461760

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 84823200

約数和(自身を除く): 53361440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 109, 110, 128, 160, 164, 176, 205, 218, 220, 320, 328, 352, 410, 436, 440, 451, 545, 640, 656, 704, 820, 872, 880, 902, 1090, 1199, 1312, 1408, 1640, 1744, 1760, 1804, 2180, 2255, 2398, 2624, 3280, 3488, 3520, 3608, 4360, 4469, 4510, 4796, 5248, 5995, 6560, 6976, 7040, 7216, 8720, 8938, 9020, 9592, 11990, 13120, 13952, 14432, 17440, 17876, 18040, 19184, 22345, 23980, 26240, 28864, 34880, 35752, 36080, 38368, 44690, 47960, 49159, 57728, 69760, 71504, 72160, 76736, 89380, 95920, 98318, 143008, 144320, 153472, 178760, 191840, 196636, 245795, 286016, 288640, 357520, 383680, 393272, 491590, 572032, 715040, 767360, 786544, 983180, 1430080, 1573088, 1966360, 2860160, 3146176, 3932720, 6292352, 7865440, 15730880, 31461760]

約数ペア:

[(1, 31461760), (2, 15730880), (4, 7865440), (5, 6292352), (8, 3932720), (10, 3146176), (11, 2860160), (16, 1966360), (20, 1573088), (22, 1430080), (32, 983180), (40, 786544), (41, 767360), (44, 715040), (55, 572032), (64, 491590), (80, 393272), (82, 383680), (88, 357520), (109, 288640), (110, 286016), (128, 245795), (160, 196636), (164, 191840), (176, 178760), (205, 153472), (218, 144320), (220, 143008), (320, 98318), (328, 95920), (352, 89380), (410, 76736), (436, 72160), (440, 71504), (451, 69760), (545, 57728), (640, 49159), (656, 47960), (704, 44690), (820, 38368), (872, 36080), (880, 35752), (902, 34880), (1090, 28864), (1199, 26240), (1312, 23980), (1408, 22345), (1640, 19184), (1744, 18040), (1760, 17876), (1804, 17440), (2180, 14432), (2255, 13952), (2398, 13120), (2624, 11990), (3280, 9592), (3488, 9020), (3520, 8938), (3608, 8720), (4360, 7216), (4469, 7040), (4510, 6976), (4796, 6560), (5248, 5995)]